確保只顯示不同的產品標識

考慮從此查詢中產生的以下部分結果集（從在ssms中創建視圖派生而來）。確保只顯示不同的產品標識

SELECT DISTINCT TOP (100) PERCENT 
    dbo.LandingHeaders.VesselId, dbo.LandingDetails.ProductId, 
    SUM(dbo.LandingDetails.Quantity) AS Quantity, 
    dbo.LandingDetails.UnitPrice 
FROM 
    dbo.LandingDetails 
INNER JOIN 
    dbo.LandingHeaders ON dbo.LandingDetails.LandingId = dbo.LandingHeaders.LandingId 
INNER JOIN 
    dbo.Vessels ON dbo.LandingHeaders.VesselId = dbo.Vessels.VesselId 
GROUP BY 
    dbo.LandingHeaders.VesselId, dbo.LandingDetails.UnitPrice, 
    dbo.LandingDetails.ProductId, dbo.LandingHeaders.LandingDate1 
HAVING   
    (dbo.LandingHeaders.LandingDate1 BETWEEN CONVERT(DATETIME, '2016-01-06 00:00:00', 102) 
            AND CONVERT(DATETIME, '2016-01-13 00:00:00', 102)) 
ORDER BY 
    dbo.LandingHeaders.VesselId, dbo.LandingDetails.ProductId

我想這僅返回不同的產品編號的和他們的相關量的總和。

EDIT

例如在這些條目，其中所述容器Id爲4有三行ProductID等於22理想我想它返回下面一行，

4 22 19.1 0.4

到目前爲止，我得到的最接近如下。

SELECT DISTINCT 
    ld.ProductId, 
    ROUND(SUM(ld.Quantity), 2) AS Quantity, 
    ld.UnitPrice, lh.VesselId 
FROM 
    LandingDetails ld 
JOIN 
    LandingHeaders lh ON ld.LandingId = lh.LandingId 
GROUP BY 
    ld.ProductId, ld.UnitPrice, lh.VesselId 
WHERE 
    lh.LandingDate1 BETWEEN '20160106' AND '20160113'

這顯然不夠接近。我很歡迎你的建議。

來源

2016-01-20 Dom Sinclair

你可以包括你的樣本數據和慾望輸出之前？ –

@JuanCarlosOropeza請參閱我添加到問題中的編輯。發佈實際數據有點困難。 –

你從你試過的查詢中得到什麼？你得到的結果有什麼問題？ –

你不需要DISTINCT,GROUP BY應該爲你做這項工作。

而且WHERE去GROUP BY

SELECT DISTINCT ld.ProductId, 
     ROUND(SUM(ld.Quantity),2) AS Quantity, 
     ld.UnitPrice, 
     lh.VesselId 
FROM LandingDetails ld 
JOIN LandingHeaders lh 
    ON ld.LandingId = lh.LandingId 
WHERE lh.LandingDate1 BETWEEN '20160106' AND '20160113' 
GROUP BY ld.ProductId, ld.UnitPrice, lh.VesselId

來源

2016-01-20 16:48:46

確保只顯示不同的產品標識

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